Maybe each nation should build a piece and we put it together like a giant lego set? That would reduce the financial burden
Yeah, but you know how that'll work out.
Everyone gets assigned their own bit of the Death Star to make and everyone's like "Yay, humanity is united peacefully at last as we all work together on a ridiculously gigantic weapon of mass destruction" and then when all the bits are done the whole thing gets assembled in Earth orbit and when they're bolting on the very last thermal exhaust port cover we have like Death Star Day and everyone's like "Yay, we actually did it, let's go blow shit up" so they line up on this asteroid or comet or some shit they've got set up as a test target and the leaders of the world's nations are all standing in the control room and like this seven year old girl who won the world lottery to get to push The Button pushes The Button and there's like this pregnant silence sort of thing until someone goes "Er, so who built the superlaser" and Obama goes "No idea bro, we did the elevators and the air con" and like Putin goes "Don't look at me, comrade, we just did the plumbing" and this goes on until the Governor General Of Tuvalu says "Guys, it was us" and everyone's like "Where the hell is Tuvalu" and the world leaders are like all Googling the place while he's going "We don't have like a manufacturing base and stuff so we did the best we could, it's mainly made of fruit" and like the seven year old girl's crying because she didn't get to blow shit up after all.
So yeah, design by committee sucks.